Who can tell me all about ASTRONEER hidden achievements?

[Mars丶Seckill]

I finished all the known achievements but some hidden steam achievements can't finish.Who could tell me all hidden achievements and the access method?

[Ryu]

Have you activated all the planet cores? Have you activated the Unknown Satellite?

;)

[Mars丶Seckill]

Yes,they are all unlock.

[Ryu]

The core awakening cheevs were all hidden, IIRC, but not sure anymore about which others were hidden. I think one of them is for opening every surface gateway in a single game. You can look at the global achievements from your profile page to see the achievements you don't have yet.